The Deni side dominated at home, winning on two rinks and having a draw on the third to finish nine shots in front of the visitors
Nothing could split Jamie Shields (s), John Flisher, Lindsay Franklin and Steven King and their opponents, with scores at 24-all after 25 ends.
Shane Laing (s), Peter Chadderton, Linda Harris and Tony Scoullar had a close game, edging themselves in front in a 19 to 18 victory.
Simon Chisholm (s), Stefan Truelsen, Stuart Treble and David Hessell had a strong showing, finishing eight shots ahead of their opponents 28 to 20.
Division One will have to overcome third placed Tongala on Saturday to guarantee a spot in finals.
Division Two claimed a much-needed 83 to 64 win over Rich River to move to fourth spot on the ladder.
Keith Plattfuss (s), Lee Hillier, Robert Morris and Toni Brooksby brought home a win with their 29 to 18 trump.
Lloyd Richie (s), Bryan Kemnitz, Joanne Bovell and Graham Nisbet were 11 shots down losing 31 to 20.
Paul Snare (s), Steven O’Brien, Harry Lea and Bill Young secured the overall victory with a 34 to 15 win over their opponents.
Division Two will take on seventh placed Tongala in the final round, with a win needed to cement finals.
Division Three remain in fourth spot despite a 68 to 63 loss to Rich River.
Tom Todd (s), Peter Scerri, Tony King and Maxine Norton went down by one shot, 24 to 23.
Russell Douglas (s), Col Knuckey, Tony Danckert and Michael Donohue had less luck going down by 17 shots, 25 to 8.
David Seymour (s), Graeme Dedman, Ray Anderson and Danny Stanmore were the only shining light for Deni, recording a 32 to 19 win.
Deni will have a tough task when they host ladder leader Moama in the final round.
Division Five are out of the finals contention in seventh place following a 46 to 40 loss to Elmore.
John Croker (s), Caryn Hillier, Sheena Wubbels and Tony Smith were defeated 26 to 21 while Alan Hardcastle, Clarrie Cameron, Keith Hay and Ian Chessells lost by one shot, 20 to 19.
Division Five will finish their year with a home game against Moama Green.